Shin Dowoon leads a double life, working as an administrative assistant at a university during the day and a demon hunter at night. One evening, he encounters a seductive incubus in the guise of a human student named Lee Hayoon, who proposes a deal: Hayoon will allow Dowoon to capture him in exchange for a contract. However, Dowoon has no tolerance for the devilish games Hayoon likes to play. Can their rough interactions fulfill the demon's desires? Check out the official webtoon for more!